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This site Cut the Knot, is the parent site of an extensive collection of interactive mathematics and puzzles authored by... see more
This site contains an extensive collection of games and puzzles in the form of java applets including Nim, the Tower of... see more
This site contains an extensive collection of java applets involving arithmetic and algebra miscellany and puzzles.... see more
A+Click Math Self-study Tests and Skill Assessment for Grade 1 to Grade 12. It includes more than 1000 challenging... see more
A collection of puzzles whose answers involve the Fibonacci numbers. The puzzles are of two types: easier and harder; the... see more
The problem proposed by ninedigits is to reorder the numbers from 1 to 9 in a square of 3 * 3 to make the sum of the... see more
This is the May 2001 version of Alexander Bogomolny's "Cut The Knot!" column. It discusses the game of Nim and variants.... see more
Wythoff?s Nim is a sub-page of Alexander Bogomolny?s Cut The Knot! site reviewed elsewhere in MERLOT; in particular, it... see more
A collection of puzzles ranging over geometry, probability, number theory, algebra, calculus, and logic. Hints are... see more
This site is designed to answer many important questions regarding carrers and professional placement of math majors. It... see more
This is Edwin Abbott's novel about a two-dimensional being who visits one-dimensional and three-dimensional worlds.... see more
A collection of puzzles whose answers involve the Fibonacci numbers. The puzzles are of two types: easier and harder; the... see more
The title says it all. This a large and active site containing many mathematical puzzles and lots of links to other... see more
Quoted from the site: "The Platonic Realms Home Page delivers fresh math humor, quotes, historical notes, and... see more
The Sliding Piece Puzzle is quite popular, the rules are simple but it requires deep thought. The object is to move the... see more
In solving this puzzle, you permute rows, columns, and quadrants in a 4x4 array of 2-color tiles to make a variety of... see more
Java Applet for the Towers of Hanoi
This is a sub-page of the large and comprehensive Eric Weisstein's World of Mathematics site which is separately reviewed... see more
A high-content, award-winning puzzle site that is divided into six main categories: puzzles & tests, optical illusions,... see more
Presents a calculator with only a few numbers and functions that work, and asks the user to generate the numbers 1-15... see more
Balance. To balance a wide range of objects: From electrons to galaxies. Didactical tool. To teach about fractions, and... see more
Another sliding 8-tile puzzle. No pictures/loads fast.
Powerpoint game designed to test students ability at coordinate graphing.
A bicolor variant of the classic Towers of Hanoi game from Alexander Bogomolny's Cut The Knot site.